ROOM chapter 3

So I just started reading chapter 3 of  "Room". So far, Ma got in  a fight with Old Nick, so Old Nick cut the power and they had cold water and no heat and light.During that time, Ma told Jack about her family on the outside. Her mom, dad, and her brother Paul. After three days he turned the power back on, but it wasn't enough for Ma. So she devises an escape plan. Her plan was to pretend Jack was sick, so Old Nick would take him to the hospital and Jack could tell the doctors where his mom is. But the plan backfires, because Old Nick refuses to take him to the hospital. But Ma had already come up with a plan B. What is plan B? we will have to wait and see....